Cognomen Leangsupong (Leangsupong 
) , all over the world, is a very rare family name. The last name Leangsupong is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Leangsupong | Thailand |
Chawalit, Chaowalit, and Patchaploy